Barclays analyst J David Anderson downgraded Noble Corp. (NE) to Underweight from Neutral while raising his price target for the shares to $5 from $4. Since March, offshore-themed drilling stocks have outperformed on the back of Brent oil prices moving above $70 per barrel, Anderson tells investors in a research note. However, current share prices now imply day rates will eclipse $400,000 per day by mid-2022 "in the face of substantial floater overcapacity and few signs of an imminent recovery," the analyst adds. As such, he believes the offshore drillers are the most overvalued group in his coverage. Anderson sees 27% average downside from current levels and downgrades Noble to Underweight. He keeps Underweight ratings on Diamond Offshore (DO), Ensco (ESV), Rowan Companies (RDC) and Transocean (RIG).